我有改进代码的问题（我不知道这是否可以做到）。我根据 geocodezip 示例http://www.geocodezip.com/geoxml3_test//v3_FusionTables_CountryBrowser_encryptedID.html制作地图，现在我想当我单击侧边栏中的属性值（多边形名称）以在弹出窗口中获得结果时将显示地图（带有我之前在侧边栏中单击的多边形）；就像在 JavaScript 窗口打开示例http://www.tizag.com/javascriptT/javascriptpopups.php一样。我没有对代码做任何事情，因为我不知道从哪里开始，我使用的代码如下。有没有人有什么建议。
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<title>USA7</title>
<style type="text/css">
html, body, #map_canvas {
width: 750px;
height: 600px;
margin: 0;
padding: 0;
}
.infowindow * {font-size: 90%; margin: 0}
.style1 {color: #FFFFFF}
</style>
<!--Load the AJAX API-->
<script type="text/javascript" src="http://www.google.com/jsapi"></script>
<script type="text/javascript" src="https://geoxml3.googlecode.com/svn/branches/polys/geoxml3.js"></script>
<!-- Initialize -->
<script type="text/javascript">
// globals
var map = null;
var infoWindow = null;
var geoXml = null;
var geoXmlDoc = null;
var myLatLng = null;
var myOptions = null;
var mapCenter = null;
var geocodeTheCountry = true;
var gpolygons = [];
var geocoder = null;
// Fusion Table data ID
var FT_TableID = '1GoqHJ9E9Ff_rfl_CLTGNlgXF3ssEaywN4_lVNUA'; // original '1-bZhRr6OMbj4NWZcY8XnVjpijvV97yNgSXSf_mE';
var CountryName = "USA"; // "United States of America";
google.load('visualization', '1', {'packages':['corechart', 'table', 'geomap']});
function createSidebar() {
// set the query using the parameters
document.getElementById('sidebar').innerHTML = "querying for data";
var FT_Query2 = "SELECT 'STATEFP', 'name', 'geometry' FROM "+FT_TableID+" WHERE 'STATEFP' = '"+CountryName+"' ORDER by 'name'";
document.getElementById("FTquery2").innerHTML = FT_Query2;
var queryText = encodeURIComponent(FT_Query2);
var query = new google.visualization.Query('http://www.google.com/fusiontables/gvizdata?tq=' + queryText);
//set the callback function
query.send(getData);
}
// Set a callback to run when the Google Visualization API is loaded.
google.setOnLoadCallback(createSidebar);
function getCountryNames() {
// set the query using the parameters
var FT_Query_CountryName = "SELECT 'STATEFP', count() FROM "+FT_TableID+" GROUP by 'STATEFP' ORDER by 'STATEFP'";
document.getElementById("FTquery4").innerHTML = FT_Query_CountryName;
var queryText = encodeURIComponent(FT_Query_CountryName);
var query = new google.visualization.Query('http://www.google.com/fusiontables/gvizdata?tq=' + queryText);
//set the callback function
query.send(createCountryDropdown);
}
function createCountryDropdown(response) {
if (!response) {
alert('no response');
return;
}
if (response.isError()) {
alert('Error in query: ' + response.getMessage() + ' ' + response.getDetailedMessage());
return;
}
//for more information on the response object, see the documentation
//http://code.google.com/apis/visualization/documentation/reference.html#QueryResponse
numRows = response.getDataTable().getNumberOfRows();
numCols = response.getDataTable().getNumberOfColumns();
var countryNames = {};
for (var i = 0; i < numRows; i++) {
var countryName = response.getDataTable().getValue(i,0);
// countryName = countryName.substring(0,countryName.indexOf('('));
countryNames[countryName] = countryName;
}
var countryNameDropdown = "<select name='country_select' onchange='handleSelected(this)'>"
countryNameDropdown += '<option selected> - Select a State by ID - <\/option>';
for (countryName in countryNames) {
countryNameDropdown += "<option value='"+countryName+"'>"+countryName+"</option>"
// document.getElementById('country_list').innerHTML += countryName+"<br>";
}
countryNameDropdown += "</select>"
document.getElementById('dropdown_menu').innerHTML = countryNameDropdown;
}
// ======= This function handles selections from the select box ====
function handleSelected(opt) {
if (opt.selectedIndex > 0) {
CountryName = geoXML3.nodeValue(opt[opt.selectedIndex]);
DisplayCountry();
} else {
alert("Please pick a country");
}
}
function DisplayCountry() {
// geocode the country
var addressStr = CountryName;
if (addressStr != "Baikonur Cosmodrome") addressStr += " Country";
geocoder.geocode( { 'address': addressStr}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
if (status != google.maps.GeocoderStatus.ZERO_RESULTS) {
map.setCenter(results[0].geometry.location);
map.fitBounds(results[0].geometry.viewport);
} else {
alert("No results found");
}
} else {
alert("Geocode was not successful for the following reason: " + status);
}
});
FT_Query = "SELECT 'geometry' FROM "+FT_TableID+" WHERE 'STATEFP' = '"+CountryName+"';";
gpolygons = [];
layer.setQuery({select:'geometry',from:FT_TableID,where:"'STATEFP' = '"+CountryName+"'"});
document.getElementById("FTquery").innerHTML = FT_Query;
createSidebar();
}
</script>
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">
var FTresponse = null;
myLatLng = new google.maps.LatLng(37.422104808,-122.0838851);
// these set the initial center, zoom and maptype for the map
// if it is not specified in the query string
var lat = 37.422104808;
var lng = -122.0838851;
var zoom = 18;
var maptype = google.maps.MapTypeId.ROADMAP;
// If there are any parameters at eh end of the URL, they will be in location.search
// looking something like "?marker=3"
// skip the first character, we are not interested in the "?"
var query = location.search.substring(1);
// split the rest at each "&" character to give a list of "argname=value" pairs
var pairs = query.split("&");
for (var i=0; i<pairs.length; i++) {
// break each pair at the first "=" to obtain the argname and value
var pos = pairs[i].indexOf("=");
var argname = pairs[i].substring(0,pos).toLowerCase();
var value = pairs[i].substring(pos+1);
if (argname == "country") {CountryName = unescape(value);}
value = pairs[i].substring(pos+1).toLowerCase();
// process each possible argname - use unescape() if theres any chance of spaces
if (argname == "geocode") {geocodeTheCountry = (value != "false");}
if (argname == "id") {id = unescape(value);}
if (argname == "filename") {filename = unescape(value);}
if (argname == "marker") {index = parseFloat(value);}
if (argname == "lat") {lat = parseFloat(value);}
if (argname == "lng") {lng = parseFloat(value);}
if (argname == "zoom") {
zoom = parseInt(value);
myGeoXml3Zoom = false;
}
if (argname == "type") {
// from the v3 documentation 8/24/2010
// HYBRID This map type displays a transparent layer of major streets on satellite images.
// ROADMAP This map type displays a normal street map.
// SATELLITE This map type displays satellite images.
// TERRAIN This map type displays maps with physical features such as terrain and vegetation.
if (value == "m") {maptype = google.maps.MapTypeId.ROADMAP;}
if (value == "k") {maptype = google.maps.MapTypeId.SATELLITE;}
if (value == "h") {maptype = google.maps.MapTypeId.HYBRID;}
if (value == "t") {maptype = google.maps.MapTypeId.TERRAIN;}
}
}
if (!isNaN(lat) && !isNaN(lng)) {
myLatLng = new google.maps.LatLng(lat, lng);
}
infoWindow = new google.maps.InfoWindow();
//define callback function, this is called when the results are returned
function getData(response) {
if (!response) {
alert('no response');
return;
}
if (response.isError()) {
alert('Error in query: ' + response.getMessage() + ' ' + response.getDetailedMessage());
return;
}
FTresponse = response;
//for more information on the response object, see the documentation
//http://code.google.com/apis/visualization/documentation/reference.html#QueryResponse
numRows = response.getDataTable().getNumberOfRows();
numCols = response.getDataTable().getNumberOfColumns();
if (numRows <= 1) {
document.getElementById('sidebar').innerHTML = "no data";
return;
}
//concatenate the results into a string, you can build a table here
fusiontabledata = "<table><tr>";
// for(i = 0; i < numCols; i++) {
fusiontabledata += "<th colspan='2'>" + response.getDataTable().getValue(1,0) + "</th>";
// }
fusiontabledata += "</tr><tr>";
fusiontabledata += "<tr><td colspan='2' align='left'><a href='javascript:showAll();'>Display all polygons in selected State</a></td></tr>";
for(i = 0; i < numRows; i++) {
// for(j = 0; j < numCols; j++) {
/*
var kml = response.getDataTable().getValue(i,2);
geoXml.parseKmlString("<Placemark>"+kml+"</Placemark>");
*/
fusiontabledata += "<td><a href='javascript:myFTclick("+i+")'>"+response.getDataTable().getValue(i, 1) + "</a></td><td><a href='javascript:zoomTo("+i+")'>show</a></td>";
// }
fusiontabledata += "</tr><tr>";
}
fusiontabledata += "</table>"
//display the results on the page
document.getElementById('sidebar').innerHTML = fusiontabledata;
}
function infoWindowContent(name, description, id) {
content = '<div class="FT_infowindow"><h3>' + name +
'</h3><div>' + description + '</div>';
if (typeof id != "undefined") {
content += '<a href="javascript:zoomTo('+id+');">zoom to</a>';
}
content += '</div>';
return content;
}
function zoomTo(id) {
loadRow(id);
if (gpolygons[id] && gpolygons[id].bounds) {
map.fitBounds(gpolygons[id].bounds);
var queryStr = "SELECT 'geometry' FROM "+FT_TableID+" WHERE 'STATEFP' = '"+CountryName+"' AND 'name' = '"+gpolygons[id].name+"';"
layer.setQuery({select:'geometry',from:FT_TableID,where:"'STATEFP' = '"+CountryName+"' AND 'name' = '"+gpolygons[id].name+"'"});
document.getElementById("FTquery3").innerHTML = queryStr;
}
}
function showAll() {
layer.setQuery({select: 'geometry', from:FT_TableID, where:"'STATEFP' = '"+CountryName+"'"});
}
function loadRow(row) {
if (!gpolygons[row]) {
var name = FTresponse.getDataTable().getValue(row,1);
var kml = FTresponse.getDataTable().getValue(row,2);
// create a geoXml3 parser for the click handlers
var geoXml = new geoXML3.parser({
map: map,
zoom: false,
infoWindow: infoWindow,
singleInfoWindow: true
});
geoXml.parseKmlString("<Placemark>"+kml+"</Placemark>");
geoXml.docs[0].gpolygons[0].setMap(null);
gpolygons[row] = new Object();
gpolygons[row].position = geoXml.docs[0].gpolygons[0].bounds.getCenter();
gpolygons[row].bounds = geoXml.docs[0].gpolygons[0].bounds;
gpolygons[row].name = name;
}
}
function myFTclick(row) {
var description = FTresponse.getDataTable().getValue(row,0);
var name = FTresponse.getDataTable().getValue(row,1);
loadRow(row);
var position = gpolygons[row].position;
// Set up and create the infowindow
if (!infoWindow) infoWindow = new google.maps.InfoWindow({});
infoWindow.setOptions({
content: infoWindowContent(name, description, row),
pixelOffset: new google.maps.Size(0, 2),
position: position
});
// Infowindow-opening event handler
infoWindow.open(map);
}
function initialize() {
myOptions = {
zoom: zoom,
center: myLatLng,
// zoom: 5,
// center: myLatlng,
mapTypeId: maptype
};
map = new google.maps.Map(document.getElementById("map_canvas"),
myOptions);
google.maps.event.addListener(map, "click", function(event) {
infoWindow.close();
var FT_click_query="SELECT 'STATEFP' FROM "+FT_TableID+" WHERE ST_INTERSECTS('geometry',CIRCLE(LATLNG"+event.latLng+", 1));";
// alert(event.latLng+"query="+FT_click_query);
// set the query using the parameters
var queryText = encodeURIComponent(FT_click_query);
var query = new google.visualization.Query('http://www.google.com/fusiontables/gvizdata?tq=' + queryText);
document.getElementById("FTquery5").innerHTML = FT_click_query;
//set the callback function
query.send(getCountryFromClick);
});
geocoder = new google.maps.Geocoder();
if (geocoder && geocodeTheCountry) {
geocoder.geocode( { 'address': CountryName+" Country"}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
if (status != google.maps.GeocoderStatus.ZERO_RESULTS) {
map.setCenter(results[0].geometry.location);
map.fitBounds(results[0].geometry.viewport);
} else {
alert("No results found");
}
} else {
alert("Geocode was not successful for the following reason: " + status);
}
});
}
var FT_Query = "SELECT 'geometry' FROM "+FT_TableID+" WHERE 'STATEFP' = '"+CountryName+"';";
var FT_Options = { suppressInfoWindows: true, query: {from:FT_TableID, select: "geometry", where: "'STATEFP' = '"+CountryName+"'"}};
// https://www.google.com/fusiontables/embedviz?q=select+col18+from+1-bZhRr6OMbj4NWZcY8XnVjpijvV97yNgSXSf_mE+where+col19+%3D+'USA'&viz=MAP&h=false&lat=34.56204535683132&lng=-86.65887199999997&t=1&z=9&l=col18&y=2&tmplt=2
document.getElementById("FTquery").innerHTML = FT_Query;
layer = new google.maps.FusionTablesLayer(/*FT_TableID, */ FT_Options);
layer.setMap(map);
google.maps.event.addListener(layer, "click", function(event) {
infoWindow.close();
infoWindow.setContent(infoWindowContent(event.row.name.value,event.row.STATEFP.value));
infoWindow.setPosition(event.latLng);
infoWindow.open(map);
});
getCountryNames();
}
function getCountryFromClick(response) {
if (!response) {
alert('no response');
return;
}
if (response.isError()) {
alert('Error in query: ' + response.getMessage() + ' ' + response.getDetailedMessage());
return;
}
//for more information on the response object, see the documentation
//http://code.google.com/apis/visualization/documentation/reference.html#QueryResponse
numRows = response.getDataTable().getNumberOfRows();
numCols = response.getDataTable().getNumberOfColumns();
if (numRows <= 1) {
return;
}
CountryName = response.getDataTable().getValue(1, 0);
// alert("CountryName="+CountryName);
DisplayCountry();
}
</script>
</head>
<body onload="initialize()">
<table style="width:100%;">
<tr><td colspan="2"><h4>USA States ID<div id="dropdown_menu">
</div></h4></td></tr>
<tr>
<td><div id="map_canvas" style="border-style:solid; border-width:1px; border-color:#333333"></div></td>
<td><div id="sidebar" style="width:300px;height:600px; border-style:solid; border-width:1px; border-color:#333333; overflow:auto"></div></td>
</tr>
<tr><td colspan="2"><span class="style1"><div id="FTquery"></div></td></tr>
<tr><td colspan="2"><span class="style1"><div id="FTquery2"></div></td></tr>
<tr><td colspan="2"><span class="style1"></td></tr>
<tr><td colspan="2"><span class="style1"><div id="FTquery4"></div></td></tr>
<tr><td colspan="2"><span class="style1"><div id="FTquery5"></div></td></tr>
</table>
<div id="country_list"></div>
<script src="http://www.google-analytics.com/urchin.js" type="text/javascript">
</script>
<script type="text/javascript">
_uacct = "UA-162157-1";
urchinTracker();
</script>
</body>
</html>